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Cosmetics add silicone oil has the following advantages -- 2017-04-13

Silicone oil has many unique properties,added to cosmetic products to increase their comfort and give luster. Wash haircare products, jewelry, skin care, makeup products have been widely used. Aftercosmetics silicone oil has the following advantages: silicone oil colorless,odorless, does not affect the final product appearance and aroma. Use of lightpleasure, expand good. Hydrophobicity and good smoothness. Skin irritation tohuman safety. Gas permeability, and do not interfere with the skin to b ...

Silicone oil has a very good hydrophobicity -- 2017-04-12

Silicone oil has a very good hydrophobicity.The so-called hydrophobic liquid means water wettable silicone oil / airinterface reached only to a lesser extent. Size of the contact angle of waterdroplets on the surface and the surface is a measure of surface hydrophobicity.The contact angle θ is greater than 90 °, preferably represents a hydrophobic,θ less than 90 °, showing poor aqueous genus.After viscosity (25 ℃) asdimethicone 100mm2·S-1 treated glass, ceramics, etc., its hydrophobicsurfa ...

Silicone oil lubricity -- 2017-04-11

Silicone oil surfactantDimethicone is low foaming, methylphenylsilicone oil showed a different degree of foaming.Causing the silicone oil in an organicsolvent solution surface tension reduction, which can make it capable ofdissolving them in the liquid phase enriched surface, having a siliconesurfactant show. Silicone oil can be emulsified in water, resulting in thedecrease in surface tension of water.This is the reason to do silicone defoamer.Their mode of action with concentration dependent; I ...

Silicone oil is usually divided into ordinary silicone oil and modified silicone oil two categories -- 2017-04-10

Silicone materials are a class of differentdegrees of functionality monomer (or intermediate), modified organic groupcomposition, made by the condensation reaction of various polymers; and againwith various additives, processed into various forms of products. Siliconematerials are generally divided into silicone, silicone rubber, silicone andsilane coupling agent four categories products group.Silicone oil is usually divided intoordinary silicone oil and modified silicone oil into two categories ...

Water-borne coatings are foamed during construction -- 2017-04-06

Foam stability is affected by several factors. Onefactor which is stable thin sandwich, sandwich the liquid inside can’t bedischarged or discharged slowly. Also electrostatic repulsion occupy themezzanine between ionic surfactants also prevents the bubble burst. Another factorprompting the foam stabilizer is Gibbs elasticity. By stretching a film havinga surface-active substance, such an elastic effect will be shown. In this case, thesurface of the double layer is expanded, resulting in local c ...

Another factor in the stability of the bubble is Gibbs elasticity -- 2017-04-05

In a liquid containing a surface active agent, aspherical bubble rising, into a stable macro bubble (big bubble). While these bubblesrise to the air interface, but which is encircled by a layer of surfactantmolecules. On the air interface also has a layer ofsurfactant molecules of the surface film, and therefore, when the bubbles riseto the surface to form a double layer. Double layerthickness of up to several microns, these small surface of the foam is verystable and difficult to eliminate. Bub ...

The foam is a stable dispersion of air bubbles in a liquid medium -- 2017-04-01

It can be defined as the foam of air bubbles in aliquid medium in a stable dispersion. If the general air into the liquid, thebubble generated can assume a spherical shape. Since the air is lessdense than the liquid, and thus it will migrate to the surface, when the gasreaches the surface of the liquid without surfactant, the bubble will burst,the air inside the bubble dissipates, the liquid surrounding the bubble in theprevious and together. Thus, the pure liquid (liquid containing nosurfactant ...

The most important properties of surfactants -- 2017-03-31

In many inks and coatings processingproduction process, the need to use surface-active substances to achievespecial effects. Forexample, in the production of water-based paint, water-insoluble base materialproduction, water-insoluble base material is required to deal with the use ofemulsifiers. At the same time,we have to improve substrate wetting and coating pigment dispersion by using additives.Surfactant most importantcharacteristic is that they have a tendency to build in the interface, such ...

Used for surface treatment of glass fibers -- 2017-03-30

For the surface treatmentof glass fiber. Silane coupling agent can improve theglass fiber and resin adhesive properties, improve the glass fiber reinforcedcomposite material strength, water resistance, weather resistance and otherproperties. In 2004 the use of glass fiber silane coupling agentaccounts for about 50% of the total consumption, which used more varieties ofvinyl silane, aminosilane, methacryloxysilane and so on.For surface treatment ofinorganic fillers. Silane coupling agent In thein ...

Silane coupling agent is obtained -- 2017-03-29

Silane coupling agentis a kind of special structure of low molecular weight organic siliconcompounds. Thegeneral formula for RSiX3, where R represents amino, mercapto vinyl, epoxy,chloropropyl, cyano and methacryloxy groups and other groups. These groups and different matrix resins have a strongability to react, and x represents a hydrolyzable group such as halogen,alkoxy, acyloxy and the like. Silanecoupling agent is trichlorosilane (HSiCl3) and with reactive groups ofunsaturated olefins in the ...

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